Table 8: Box–Behnken experimental design table for recovery of copper.

StdRunFactor 1Factor 2Factor 3
A: CDB: solventC: time
A/dm2mlHrs

11214002
214194002
3216002
44196002
51815001
613195001
71615003
811195003
98104001
101106001
116104003
127106003
135105002
149105002
1517105002
163105002
1715105002
1810105002